Illustrated Companion to the Latin Dictionary/Columnarius

This article incorporates text from a publication now in the public domain: Rich, Anthony (1849). The illustrated companion to the Latin dictionary, and Greek lexicon. p. vi. OCLC 894670115. https://archive.org/details/illustratedcompa00rich. 

COLUMNA'RIUS. A worthless fellow, or, perhaps, an insolvent debtor; i. e. literally one who had been summoned to receive punishment at the columna Maenia. Cael. ad Cic. Fam. viii. 9.